30-40 a week is about right for your touring schedule
40x52 (weeks) = 2080 CD's sold
at a profit of $3 each (roughly 2 dollars in manufacturing right?) = $6240 for the year...if you can keep it up...which is the hard part.
Myself I'm not for getting signed ...except maybe timewarner

because the average signed bands sells 10,000 CD's a year but has to sign most of the rights over to the lable indefinately. You might be able to eeek out a royalty of $1 per CD with with a full time schedule would bag you maybe another $4000 for a grand total of $10,000 off of CD sales...most of the revenue would come from ticket sales. So unless you currently are living below poverty ($16,000) (like me

)getting signed really isn't worth it.
Also lables don't accept unsolicited demos...they throw them away unopened usually.
Play shows and lables will find you because lables want acts that are willing tour like hell so you have to be able to convince them that they can either sit back and watch or cash in on an "already" hit.
After playing enough shows thoughout your region (aka don't stay in your home city) you'll probably be more interested in which lables are worth dealing with... it's easy to sign a recording contract...getting a lable to actually do something is the hard part
